Concentration gradient Study guides, Class notes & Summaries
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BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update
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BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update 
 
True or False: A virus is considered a microorganism. 
False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 
 
1.	What is the smallest biological unit of life? 
A cell. ...
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Bio 1201 gregg Exam 2 (100% correct and graded A+)
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transport proteins - are responsible for controlling passage across the membrane 
fluid mosaic model - The membrane is a mosaic of protein molecules bobbing in a fluid bilayer of 
phospholipids 
fatty acid tails - nonpolar, hydrophobic 
fatty acid heads - hydrophilic, polar 
periphial proteins - bound to the surface of the membrane 
integral proteins - penetrate the hydrophobic core (ones that span the membrane are 
transmembrane protiens 
How do cells recognize each other? - by binding to molec...
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Rutgers Murphy Biochem Exam 2 Fully Solved Solution
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Membrane remodeling 
Requires phospholipases 
Requires acyl transferases 
Occurs only when cells are under stress 
Correct! Both A and B are correct 
All of the above are correct 
Both A and B are correct 
In simple diffusion a solute 
Is propelled by random molecular motion 
Moves up its concentration gradient 
Moves across a membrane because of an input of free energy. 
Both A and B are correct 
All of the above are correct 
Is propelled by random molecular motion
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ECPI Final Exam Bio 112 questions with correct answers
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Osmosis is the movement of Answer water through a selectively permeable membrane down its concentration gradient 
 
The ability of an organism to sense and react to changes in its body illustrates Answer responsiveness 
 
In negative feedback mechanisms, changes away from the normal state Answer stimulate changes in the opposite direction to restore normal levels 
 
Which of the following are living organisms simplest unit? Answer cells 
 
An organic compound always contains Answer carbon and hy...
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Rush Advanced Pharmacology NSG 531 Exam 1 Questions and Correct Answers
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Rush Advanced Pharmacology NSG 531 Exam 1 Questions and Correct Answers 
Drug - Answer-a substance intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease and a substance, other than food, intended to affect the structure or any function of the body 
 
T/F most drugs are strong acids or strong bases - Answer-F - most drugs are weak acids or weak bases 
 
what are the four things that the body does to a drug? - Answer-1. absorbs it 
2. distributes it (think about...
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Hemo Dialysis Bonnet Exam With 100% Correct Answers 2023
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Hemo Dialysis Bonnet Exam With 100% Correct Answers 2023 
Osmosis 
movement of fluid across a semipermeable membrane from an area of lower concentration to higher concentration 
 
 
 
Diffusion 
movement of dissolved particles across a semipermeable membrane from an area of higher concentration to lower concentration 
 
 
 
Ultrafiltration 
water is removed from blood because there is pressure gradient across the membrane 
 
 
 
Ultrafiltration Rate 
The rate at which fluid moves from blood into...
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PATHO- NURS 8022 EXAM 1 QUESTIONS & ANSWERS (2023/2024)(VERIFIED ANSWERS)
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PATHO- NURS 8022 EXAM 1 QUESTIONS & ANSWERS (2023/2024)(VERIFIED ANSWERS)EXAM 1 PATHO- NURS 8022 QUESTIONS & ANSWERS 
(2023/2024)(VERIFIED ANSWERS) 
Negative Feedback 
 - ANSWER Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the 
pancreas 
Positive Feedback 
 - ANSWER Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade 
Proteins 
 - ANSWER Provide selectivity to a membrane 
Integral proteins 
 - ANSWER channel...
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Edexcel a level biology paper 1 mark scheme june 2023
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Biology B (9BI0) 
Paper 01: Advanced Biochemistry, 
Microbiology, and Genetics 
Edexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We 
provide a wide range of qualifications including academic, vocational, occupational and 
specific programmes for employers. For further information visit our qualifications websites 
at or . Alternatively, you can get in touch with ...
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BIOL 1P91 Final Exam Questions And Verified Solutions
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BIOL 1P91 Final Exam Questions And Verified Solutions 
What are the 3 general components that make up an atom? - ANS Protons 
Neutrons 
Electrons 
 
The sum of the atomic number and the number of neutrons is: - ANS A (the atomic number) 
Mass Number 
 
Which of the following is/ are a polar bond? 
A) O-H bond in water * 
B) C-O in CO2 
C) N-N in N2 
D) all of the above 
E) two of the above - ANS A) O-H bond in water 
 
A substance dissolvable in oil is said to be: - ANS Hydrophobic...
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Hemo Dialysis Bonnet Exam With 100%Correct Answers 2023.
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Hemo Dialysis Bonnet Exam With 100%Correct Answers 2023. 
Osmosis - answer movement of fluid across a semipermeable membrane from an area of lower concentration 
to higher concentration 
Diffusion - answer movement of dissolved particles across a semipermeable membrane from an area of higher 
concentration to lower concentration 
Ultrafiltration - answer water is removed from blood because there is pressure gradient across the membrane 
Ultrafiltration Rate - answer The rate at which fluid moves...
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HMX Biochemistry exam 2023 with 100% correct answer
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synthesis 
ATP synthase couple the exergonic movement of H+ ions down a concentration gradient to the endergonic _______ of ATP from ADP and Pi 
 
 
 
outer and inner 
Mitochondria has 2 membranes: ________ 
 
 
 
unfavorable 
Reaction with a positive change in free energy are thermodynamically 
 
 
 
favorable 
reaction with a negative free energy(G) are thermodynamically 
 
 
 
Energy 
ability to do work 
 
 
 
coordinate diagram 
Change in the free energy of molecules in chemical reaction can...
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